/* Book Bugs tutor — styles. Land colours follow the 2026 game mat: Viridis green, Arroki amber,
   Notopos purple/blue, Eterna pink/red. */
:root {
  --bg: #fff7e6;
  --paper: #fff1cc;
  --paper-2: #ffe7a8;
  --ink: #3b2a14;
  --muted: #7a6245;
  --line: #d9a441;
  --accent: #e8572a;
  --accent-2: #2a9d8f;
  --viridis: #5cb85c;  --viridis-2: #2f8f3a;
  --arroki: #f2b134;   --arroki-2: #d98a0c;
  --notopos: #7b5ee6;  --notopos-2: #4a35a8;
  --eterna: #f0608a;   --eterna-2: #c42a5a;
  --shadow: 0 6px 18px rgba(80, 50, 10, .18);
  --radius: 18px;
  --card-w: 112px;
  --card-h: 158px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1f1812; --paper: #2b2117; --paper-2: #3a2c1e; --ink: #fbf1dc; --muted: #cdb79a; --line: #a8782a;
    --shadow: 0 6px 18px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"] {
  --bg: #1f1812; --paper: #2b2117; --paper-2: #3a2c1e; --ink: #fbf1dc; --muted: #cdb79a; --line: #a8782a;
  --shadow: 0 6px 18px rgba(0,0,0,.45);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  background-image: radial-gradient(circle at 10% 10%, rgba(92,184,92,.15), transparent 40%),
                    radial-gradient(circle at 90% 15%, rgba(242,177,52,.18), transparent 40%),
                    radial-gradient(circle at 15% 90%, rgba(123,94,230,.15), transparent 40%),
                    radial-gradient(circle at 90% 90%, rgba(240,96,138,.15), transparent 40%);
  color: var(--ink);
  font-family: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 18px;
  line-height: 1.45;
  min-height: 100vh;
}
h1, h2, h3, .display { font-family: "Fredoka", "Nunito", system-ui, sans-serif; font-weight: 600; letter-spacing: .01em; }
h1 { font-size: clamp(1.8rem, 5vw, 3rem); margin: 0 0 .3em; }
h2 { font-size: clamp(1.5rem, 4vw, 2.2rem); margin: 0 0 .4em; }
h3 { font-size: 1.25rem; margin: 1em 0 .4em; }
a { color: var(--accent-2); }
button { font: inherit; cursor: pointer; }

/* Layout */
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 10px 16px;
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--line);
}
.topbar .logo { font-family: "Fredoka", sans-serif; font-weight: 700; font-size: 1.35rem; text-decoration: none; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.topbar .logo span.bug { font-size: 1.6rem; }
.topbar .spacer { flex: 1; }
.topbar .progress { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.topbar .progress a { width: 14px; height: 14px; border-radius: 50%; background: var(--paper-2); border: 2px solid var(--line); display: block; }
.topbar .progress a.done { background: var(--viridis); }
.topbar .progress a.current { background: var(--accent); transform: scale(1.25); }
.iconbtn { border: 2px solid var(--line); background: var(--paper); border-radius: 12px; padding: 6px 10px; font-size: 1.1rem; }
main { max-width: 980px; margin: 0 auto; padding: 16px 16px 120px; }
.lesson { animation: fadeUp .4s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px);} to { opacity: 1; transform: none; } }
.kicker { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; color: var(--muted); font-weight: 800; }
.lead { font-size: 1.25rem; }
.kid { font-size: 1.35rem; line-height: 1.5; }
.kid p { margin: .4em 0; }
.panel { background: var(--paper); border: 3px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); margin: 14px 0; }
.panel.tight { padding: 10px 12px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.row.center { justify-content: center; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.speak { border: none; background: transparent; font-size: 1.4rem; vertical-align: middle; padding: 0 6px; }
.speak[aria-pressed="true"] { animation: wiggle .6s infinite; }
@keyframes wiggle { 0%,100% { transform: rotate(-8deg);} 50% { transform: rotate(8deg);} }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; border: none; border-radius: 999px; padding: 12px 22px; font-weight: 800; font-size: 1.1rem; background: var(--accent); color: #fff; box-shadow: 0 4px 0 #a83a15; transition: transform .08s; }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 #a83a15; }
.btn.secondary { background: var(--accent-2); box-shadow: 0 4px 0 #1b6d63; }
.btn.secondary:active { box-shadow: 0 1px 0 #1b6d63; }
.btn.ghost { background: var(--paper); color: var(--ink); border: 2px solid var(--line); box-shadow: 0 4px 0 var(--line); }
.btn.ghost:active { box-shadow: 0 1px 0 var(--line); }
.btn.big { font-size: 1.35rem; padding: 16px 30px; }
.btn[disabled] { opacity: .45; cursor: default; }
.btn.land-Viridis { background: var(--viridis-2); box-shadow: 0 4px 0 #1f5f27; }
.btn.land-Arroki { background: var(--arroki-2); box-shadow: 0 4px 0 #8f5a06; }
.btn.land-Notopos { background: var(--notopos-2); box-shadow: 0 4px 0 #2d1f6e; }
.btn.land-Eterna { background: var(--eterna-2); box-shadow: 0 4px 0 #7d1a3a; }
.navbar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--bg) 90%, transparent); border-top: 2px solid var(--line); backdrop-filter: blur(8px); }
.navbar .title { font-weight: 800; color: var(--muted); font-size: .95rem; text-align: center; flex: 1; }

/* Fold for grown-ups */
details.fold { background: var(--paper-2); border-radius: 12px; padding: 8px 14px; margin: 14px 0; border: 2px dashed var(--line); font-size: 1rem; }
details.fold summary { cursor: pointer; font-weight: 800; }
details.fold blockquote { margin: .6em 0; padding: .4em .8em; border-left: 4px solid var(--line); background: rgba(255,255,255,.35); font-style: italic; }
details.fold cite { display: block; font-size: .85rem; color: var(--muted); font-style: normal; margin-top: .3em; }

/* Cards */
.card {
  width: var(--card-w); height: var(--card-h); border-radius: 12px; position: relative; overflow: hidden;
  background: #fff; color: #222; box-shadow: 0 3px 8px rgba(0,0,0,.25); border: 3px solid var(--land-2, #999);
  display: flex; flex-direction: column; user-select: none; flex: none;
  transition: transform .35s ease, box-shadow .2s;
  font-size: 11px; line-height: 1.15;
}
.card .art { flex: 1; display: grid; place-items: center; font-size: 46px; background: linear-gradient(180deg, var(--land, #ccc), color-mix(in srgb, var(--land, #ccc) 55%, #fff)); position: relative; }
.card .emblem { position: absolute; top: 4px; left: 4px; width: 28px; height: 28px; border-radius: 50%; background: #fff; border: 2px solid var(--land-2); display: grid; place-items: center; font-weight: 900; font-size: 15px; color: var(--land-2); box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.card .tag { position: absolute; top: 4px; right: 4px; font-size: 9px; font-weight: 900; background: #fff; border-radius: 6px; padding: 1px 4px; color: var(--land-2); border: 1px solid var(--land-2); }
.card .name { font-family: "Fredoka", sans-serif; font-weight: 700; font-size: 13px; padding: 3px 6px 0; background: var(--land-2); color: #fff; text-align: center; text-transform: uppercase; letter-spacing: .04em; }
.card .skill { padding: 4px 6px; height: 46px; overflow: hidden; background: #fffbea; font-weight: 700; font-size: 10px; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; }
.card .footer { display: flex; justify-content: space-between; gap: 6px; padding: 2px 6px 3px; font-size: 10px; color: #555; background: #fff; }
.card .footer span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .footer b { color: var(--land-2); }
.card.small { --card-w: 72px; --card-h: 102px; font-size: 8px; }
.card.small .art { font-size: 28px; }
.card.small .emblem { width: 20px; height: 20px; font-size: 11px; }
.card.small .name { font-size: 9px; }
.card.small .skill { display: none; }
.card.small .footer { font-size: 8px; }
.card.back { background: repeating-linear-gradient(45deg, #5a3b1c 0 8px, #7a4f22 8px 16px); border-color: #3a2410; }
.card.back .art, .card.back .name, .card.back .skill, .card.back .footer { visibility: hidden; }
.card.back::after { content: "🐛"; position: absolute; inset: 0; display: grid; place-items: center; font-size: 40px; filter: drop-shadow(0 2px 2px rgba(0,0,0,.5)); }
.card.defence { transform: rotate(90deg); }
.card.flipped { transform: rotate(180deg); filter: grayscale(.7) brightness(.8); }
.card.defence.flipped { transform: rotate(270deg); }
.card.selectable { cursor: pointer; }
.card.selectable:hover, .card.selected { transform: translateY(-10px) scale(1.04); box-shadow: 0 10px 18px rgba(0,0,0,.3); outline: 4px solid var(--accent); }
.card.defence.selectable:hover { transform: rotate(90deg) scale(1.04); }
.card.glow { animation: glow 1s ease-in-out infinite alternate; }
@keyframes glow { from { box-shadow: 0 0 0 0 rgba(255,215,0,.6);} to { box-shadow: 0 0 22px 8px rgba(255,215,0,.9);} }
.card.shake { animation: shake .5s; }
@keyframes shake { 0%,100% { transform: translateX(0);} 20%,60% { transform: translateX(-8px);} 40%,80% { transform: translateX(8px);} }
.land-Viridis { --land: var(--viridis); --land-2: var(--viridis-2); }
.land-Arroki { --land: var(--arroki); --land-2: var(--arroki-2); }
.land-Notopos { --land: var(--notopos); --land-2: var(--notopos-2); }
.land-Eterna { --land: var(--eterna); --land-2: var(--eterna-2); }
.land-chip { display: inline-block; padding: 2px 10px; border-radius: 999px; color: #fff; background: var(--land-2); font-weight: 800; font-size: .85rem; }

/* Big labelled card for the anatomy lesson */
.anatomy { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: center; }
.anatomy .card { --card-w: 230px; --card-h: 330px; font-size: 18px; margin: 0 auto; }
.anatomy .card .art { font-size: 96px; }
.anatomy .card .emblem { width: 56px; height: 56px; font-size: 30px; top: 8px; left: 8px; border-width: 3px; }
.anatomy .card .tag { font-size: 14px; top: 10px; right: 8px; }
.anatomy .card .name { font-size: 24px; padding: 6px; }
.anatomy .card .skill { height: 92px; font-size: 15px; padding: 8px 10px; }
.anatomy .card .footer { font-size: 15px; padding: 4px 10px 6px; }
.anatomy .labels { display: flex; flex-direction: column; gap: 10px; }
.anatomy .label { border: 3px solid var(--line); background: var(--paper); border-radius: 14px; padding: 8px 12px; font-weight: 800; text-align: left; color: var(--ink); }
.anatomy .label.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.card .part.hl { outline: 4px solid var(--accent); outline-offset: -2px; animation: pulse .8s infinite alternate; z-index: 2; }
@keyframes pulse { from { box-shadow: 0 0 0 0 rgba(232,87,42,.6);} to { box-shadow: 0 0 0 10px rgba(232,87,42,0);} }
@media (max-width: 700px) { .anatomy { grid-template-columns: 1fr; } .anatomy .labels { flex-direction: row; flex-wrap: wrap; justify-content: center; } }

/* Game mat */
.mat {
  overflow: hidden;
  background: linear-gradient(135deg, #ffe9a6, #ffd36a); border: 4px solid #c97a1a; border-radius: 16px; padding: 8px; position: relative;
  display: grid; grid-template-rows: auto 1fr 1.2fr auto; grid-template-columns: 1fr 1fr; gap: 8px; min-height: 360px; color: #6b4a16;
  box-shadow: var(--shadow);
}
.mat .track { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 2px; }
.mat .track .pip { flex: 1 1 0; min-width: 0; height: 30px; display: grid; place-items: center; font-weight: 900; font-size: 12px; background: #fff3cf; border: 2px solid #c97a1a; clip-path: polygon(15% 0, 85% 0, 100% 50%, 85% 100%, 15% 100%, 0 50%); position: relative; }
.mat .track .pip.win { background: #ffd54a; }
.mat .zone { border: 3px dashed #c97a1a; border-radius: 12px; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; min-height: 120px; padding: 6px; }
.mat .zone .zlabel { position: absolute; top: 6px; left: 10px; font-family: "Fredoka", sans-serif; font-weight: 700; font-size: 1.1rem; letter-spacing: .08em; opacity: .7; }
.mat .zone.field { grid-column: 1 / -1; flex-direction: row; justify-content: flex-start; align-items: center; gap: 8px; padding: 28px 10px 10px; overflow-x: auto; min-height: 150px; }
.mat .zone.field .slot { width: var(--card-w); height: var(--card-h); border: 2px dashed rgba(201,122,26,.5); border-radius: 12px; display: grid; place-items: center; color: rgba(107,74,22,.5); font-weight: 800; flex: none; }
.mat .zone.field .arrow { position: absolute; bottom: 4px; left: 10px; right: 10px; text-align: center; font-size: .8rem; opacity: .7; }
.mat .pile { position: relative; width: var(--card-w); height: var(--card-h); }
.mat .pile .card { position: absolute; inset: 0; }
.mat .pile .count { position: absolute; right: -10px; bottom: -10px; background: var(--accent); color: #fff; border-radius: 999px; min-width: 30px; height: 30px; display: grid; place-items: center; font-weight: 900; z-index: 3; }
.mat .token { position: absolute; width: 26px; height: 26px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, #ff9b7a, #c0392b); border: 2px solid #fff; box-shadow: 0 2px 4px rgba(0,0,0,.4); z-index: 5; transition: left .5s cubic-bezier(.3,1.4,.6,1), top .5s cubic-bezier(.3,1.4,.6,1); pointer-events: none; }
.mat .token.p2 { background: radial-gradient(circle at 30% 30%, #8fd3ff, #1f6fb2); }
.mat.compact { min-height: 240px; --card-w: 72px; --card-h: 102px; }
.mat.compact .zone.field { min-height: 110px; padding-top: 24px; }
.mat.compact .zone { min-height: 90px; }
.hand { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; padding: 10px; min-height: calc(var(--card-h) + 20px); background: rgba(255,255,255,.35); border-radius: 14px; margin-top: 10px; position: relative; }
.hand .hlabel { position: absolute; top: -12px; left: 12px; background: var(--accent-2); color: #fff; border-radius: 999px; padding: 2px 10px; font-weight: 800; font-size: .85rem; }
.hand.limit-over { outline: 4px solid var(--accent); }
.fly-layer { position: fixed; inset: 0; pointer-events: none; z-index: 50; }
.fly-layer .card { position: absolute; margin: 0; }

/* Step-by-step */
.steps { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; }
.steps .step { border: 2px solid var(--line); border-radius: 999px; padding: 4px 12px; font-weight: 800; background: var(--paper); color: var(--muted); }
.steps .step.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.steps .step.done { background: var(--viridis); color: #fff; border-color: var(--viridis); }
.bubble { background: #fff; color: #222; border-radius: 16px; padding: 12px 16px; border: 3px solid var(--accent); font-weight: 800; font-size: 1.2rem; position: relative; margin: 10px 0; animation: pop .3s ease both; }
.bubble::before { content: ""; position: absolute; top: -14px; left: 28px; border: 8px solid transparent; border-bottom-color: var(--accent); border-top: 0; }
@keyframes pop { from { transform: scale(.9); opacity: 0;} to { transform: none; opacity: 1;} }

/* Skills grid */
.skills { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.skills button { border: 3px solid var(--line); background: var(--paper); border-radius: 14px; padding: 12px 8px; font-weight: 800; color: var(--ink); display: flex; flex-direction: column; align-items: center; gap: 6px; }
.skills button .ico { font-size: 2rem; }
.skills button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.scene { background: var(--paper); border: 3px solid var(--line); border-radius: 16px; padding: 14px; min-height: 240px; margin-top: 12px; }
.scene .stage { display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; min-height: 190px; padding: 10px; }
.scene .zone-mini { border: 3px dashed var(--line); border-radius: 12px; padding: 22px 10px 10px; position: relative; display: flex; gap: 8px; min-width: 100px; min-height: calc(var(--card-h) + 36px); align-items: center; }
.scene .zone-mini::before { content: attr(data-label); position: absolute; top: 3px; left: 10px; font-size: .75rem; font-weight: 900; letter-spacing: .08em; color: var(--muted); }
.scene .zone-mini .card { margin: 0; }
.scene .stage .hand { flex: 1 1 220px; margin-top: 14px; }
.sparkle { position: absolute; pointer-events: none; font-size: 28px; animation: spark .9s ease-out forwards; }
@keyframes spark { from { transform: translateY(0) scale(.6); opacity: 1;} to { transform: translateY(-50px) scale(1.4); opacity: 0;} }

/* Quiz */
.quiz .q { font-size: 1.4rem; font-weight: 800; }
.quiz .answers { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; margin: 14px 0; }
.quiz .answers button { border: 3px solid var(--line); background: var(--paper); border-radius: 16px; padding: 16px; font-size: 1.15rem; font-weight: 800; color: var(--ink); min-height: 72px; }
.quiz .answers button.right { background: var(--viridis); color: #fff; border-color: var(--viridis-2); animation: pop .3s; }
.quiz .answers button.wrong { background: #ddd; color: #666; }
@media (max-width: 520px) { .quiz .answers { grid-template-columns: 1fr; } .mat .track .pip { font-size: 10px; height: 26px; } .mat .zone.field { padding-left: 6px; } }
.stars { font-size: 2rem; letter-spacing: .1em; }
.confetti { position: fixed; top: -20px; width: 12px; height: 18px; z-index: 60; pointer-events: none; animation: fall linear forwards; }
@keyframes fall { to { transform: translateY(110vh) rotate(720deg); opacity: .8; } }

/* Arena */
.arena .players { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
.arena .pbox { min-width: 0; }
.arena .pbox { border: 4px solid var(--line); border-radius: 16px; padding: 10px; background: var(--paper); position: relative; }
.arena .pbox.active { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(232,87,42,.25); }
.arena .pbox h3 { margin: 0 0 6px; display: flex; align-items: center; gap: 10px; }
.arena .score { margin-left: auto; background: var(--ink); color: var(--bg); border-radius: 999px; padding: 2px 12px; font-size: 1rem; }
.arena .fieldrow { display: flex; gap: 6px; overflow-x: auto; padding: 8px 4px; min-height: calc(var(--card-h) + 16px); align-items: center; }
.arena .log { background: var(--paper-2); border-radius: 12px; padding: 8px 12px; max-height: 140px; overflow: auto; font-size: .95rem; }
.arena .log div { padding: 2px 0; border-bottom: 1px dashed var(--line); }
.arena .controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 10px 0; }
.arena .hint { font-weight: 800; color: var(--accent); }
.arena .choose .card { cursor: pointer; }
.arena .choose .card:hover { transform: translateY(-6px); }
.tracker { display: flex; gap: 3px; flex-wrap: wrap; margin: 6px 0; }
.tracker span { width: 22px; height: 22px; border-radius: 6px; background: #fff3cf; border: 2px solid var(--line); font-size: 11px; display: grid; place-items: center; font-weight: 900; color: #6b4a16; }
.tracker span.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.tracker span.win { background: #ffd54a; }

/* Bug list */
.buglist .filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 10px 0; }
.buglist input { font: inherit; padding: 8px 12px; border-radius: 999px; border: 2px solid var(--line); background: var(--paper); color: var(--ink); min-width: 200px; }
.buglist .cards { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.bugtile { background: var(--paper); border: 3px solid var(--land-2); border-radius: 14px; padding: 8px; text-align: center; }
.bugtile .av { font-size: 2.4rem; background: linear-gradient(180deg, var(--land), transparent); border-radius: 10px; }
.bugtile .nm { font-weight: 800; font-family: "Fredoka", sans-serif; }
.bugtile .oc { font-size: .85rem; color: var(--muted); }
.bugtile .no { font-size: .8rem; font-weight: 900; color: var(--land-2); }
.bugtile .desc { font-size: .85rem; margin-top: 4px; }

/* Home */
.lands { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.landcard { border-radius: 16px; padding: 14px; color: #fff; background: linear-gradient(160deg, var(--land), var(--land-2)); box-shadow: var(--shadow); position: relative; overflow: hidden; min-height: 120px; }
.landcard h3 { margin: 0; color: #fff; }
.landcard .bugs { font-size: 2rem; }
.landcard .bugs span { display: inline-block; animation: floaty 3s ease-in-out infinite; }
.landcard .bugs span:nth-child(2) { animation-delay: .7s; } .landcard .bugs span:nth-child(3) { animation-delay: 1.4s; }
@keyframes floaty { 0%,100% { transform: translateY(0) rotate(-4deg);} 50% { transform: translateY(-8px) rotate(4deg);} }
.toc { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.toc a { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); background: var(--paper); border: 3px solid var(--line); border-radius: 14px; padding: 10px 14px; font-weight: 800; font-size: 1.1rem; }
.toc a .n { background: var(--accent); color: #fff; border-radius: 50%; width: 34px; height: 34px; display: grid; place-items: center; flex: none; }
.toc a.done .n { background: var(--viridis); }
.toc a .ico { font-size: 1.5rem; }
.small { font-size: .9rem; color: var(--muted); }
.sr-only { position: absolute; left: -9999px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }